The reason why I state this is a glitch is due to the fact you have to perform a glitch (bridge glitch) to get to this location. Basically right behind the nether portal after performing the bridge glitch at camp, there is a little parkour/pathway that leads to a chest on top of the mountain hill thing. The reason why Im stating this as a "Glitch" or bug is due to the fact that this is an area that shouldn't be accessible yet by the player and having the chest spawn in an area none accessible is very strange.